virgil::crypto::foundation::asn1::VirgilAsn1Reader Class Reference

This class provides methods for reading ASN.1 data structure. More...

#include <VirgilAsn1Reader.h>

Public Member Functions
	VirgilAsn1Reader ()
	Initialize internal state.
	VirgilAsn1Reader (const virgil::crypto::VirgilByteArray &data)
	Initialize internal state with given ASN.1 structure. More...
	~VirgilAsn1Reader () noexcept
	Dispose internal resources.
	VirgilAsn1Reader (const VirgilAsn1Reader &other)=delete
	Delete copy constructor.
VirgilAsn1Reader &	operator= (const VirgilAsn1Reader &rhs)=delete
	Delete assignment operator.
	VirgilAsn1Reader (VirgilAsn1Reader &&other)=default
	Use default move constructor.
VirgilAsn1Reader &	operator= (VirgilAsn1Reader &&rhs)=default
	Use default move operator.
Configure reading
void	reset (const virgil::crypto::VirgilByteArray &data)
	Reset all internal states and prepare to new ASN.1 reading operations. More...
Read Simple ASN.1 Types
int	readInteger ()
	Read ASN.1 type: INTEGER.
bool	readBool ()
	Read ASN.1 type: BOOLEAN.
void	readNull ()
	Read ASN.1 type: NULL.
virgil::crypto::VirgilByteArray	readOctetString ()
	Read ASN.1 type: OCTET STRING.
virgil::crypto::VirgilByteArray	readUTF8String ()
	Read ASN.1 type: UTF8String.
virgil::crypto::VirgilByteArray	readData ()
	Read preformatted ASN.1 structure.
size_t	readContextTag (unsigned char tag)
	Read ASN.1 type: TAG. More...
std::string	readOID ()
	Read ASN.1 type: OID. More...
Read Structured ASN.1 Types
size_t	readSequence ()
	Read ASN.1 type: SEQUENCE. More...
size_t	readSet ()
	Read ASN.1 type: SET. More...

Detailed Description

This class provides methods for reading ASN.1 data structure.

Note

All "read*" methods perform reading of ASN.1 structure sequentially.

Implementation is not complete yet, only minimum set of operations are supported.

Constructor & Destructor Documentation

virgil::crypto::foundation::asn1::VirgilAsn1Reader::VirgilAsn1Reader ( const virgil::crypto::VirgilByteArray &  data )

explicit

Initialize internal state with given ASN.1 structure.

Note

The same as sequence VirgilAsn1Reader() and reset().

Member Function Documentation

size_t virgil::crypto::foundation::asn1::VirgilAsn1Reader::readContextTag

(

unsigned char

tag

)

Read ASN.1 type: TAG.

Returns

Tag length if given tag exist, 0 - otherwise.

std::string virgil::crypto::foundation::asn1::VirgilAsn1Reader::readOID

(

)

Read ASN.1 type: OID.

Returns

OID. TODO: Change return type to VirgilByteArray

size_t virgil::crypto::foundation::asn1::VirgilAsn1Reader::readSequence

(

)

Read ASN.1 type: SEQUENCE.

Returns

Sequence size in bytes.

size_t virgil::crypto::foundation::asn1::VirgilAsn1Reader::readSet

(

)

Read ASN.1 type: SET.

Returns

Set size in bytes.

void virgil::crypto::foundation::asn1::VirgilAsn1Reader::reset

(

const virgil::crypto::VirgilByteArray &

data

)

Reset all internal states and prepare to new ASN.1 reading operations.

Parameters

data	- ASN.1 structure to be read.

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The documentation for this class was generated from the following file:

• include/virgil/crypto/foundation/asn1/VirgilAsn1Reader.h